Featuring a backlit, bright blue LCD display - our power supply tester can verify that every part of your power supply is operational including the P8 motherboard connector as well as the PCI-E 8-Pin! It gives voltage read-outs and beeps if there is a problem. It even works with 20-pin power supplies (though it will complain about missing second 12 volt rail). This is a must have for systems builders and enthusiasts alike!

This latest Revision comes with an ON/OFF button so overheating the unit is virtually impossible! It also tests 8-Pin motherboard connections as well as 8-Pin PCI-E cables!

Below is a step by step walk thru on how to test for full functionality!

Usage:→Plug-in your ATX power 24 pin and plug-in (P4/P6/P8) into the tester.→Turn on your ATX power supply→LCD shows each voltage and P.G. value on the screen automatic and you can hear 2 beep sounds.→ATX power output connector checking one by one.→If power output is working, the LED will light on.→If power output failed, the LED will not light on.→Plug-in (HDD/Floppy) connector and check LED light (+12V1/+5V)→Plug-in SATA connector and check LED light (+12V1/+5V+3.3V)→Remove the connector after your checking→Do not plug-in 2 connectors into the tester at the same time(Not include 24 pin connector)→Abnormal voltage detected will not display on the screen.→No voltage detect, LL will display on the screen.→When detected Voltage is lower than Min. Value, LL will display on the screen.→When detected Voltage is higher than Max. Value, HH will display on the screen.→When detected voltage is lower than table value (A), will alarm.→When detected voltage is higher than table value (B), will alarm.→P.G. value detected lower 100ms or higher 900ms, P.G. value is abnormal and alarm.→When abnormal happened, it will alarm and relative digit blink on the screen.

Warning: This product is designed only for power supply output tests. Do not leave it connected to the power supply unattended. It generates heat and could possibly damage your power supply.

PLEASE NOTE:If your power supply tester produces a constant beep and the 12V2 indicates "LL" this does not mean either your power supply or the tester is defective. It simply means the 2nd 12 volt rail is not detected. This is a result of either testing a power supply that does not have a 2nd 12 volt rail, or that you have not plugged in a connector carrying the 2nd 12 volt rail. PCI Express, 4-pin P4, and 8-pin motherboard connectors should all use the 2nd 12 volt rail, and when plugged into the tester, the "LL" indication and beeping noise should cease.

If it reports a very low, high or no voltage at all, it is highly recommended to stop use of the power supply.

Bright blue LCD display

LCD displays ATX power voltages

Tests 20-pin and 24-pin power supplies

Tests SATA power

Tests Pentium 4/8 power connector

Tests PCI-Express 6-Pin / 8-Pin power connectors

Tests Floppy drive power connectors

Tests standard 4-pin power supply connectors

Tests for +12V1/+5V/+3.3V/5VSB/+12V2/-12V outputs

Aluminum Case

Accurate Voltage indicator +/- 0.1V

Displays ATX P.G. values

Low or High PG values alarm

ATX output connectors check

Over Voltage Alarm

No Voltage Alarm

Low Voltage Alarm

Total Reviews: 7 Average Rating:

These are a must have!

10-17-2014Reviewer:T.K. (2)
I needed one of these real bad and I felt this one from FrozenCPU was the best one I could find with a reasonable price to boot! Good price good equipment no complaints.

A Handy Tool

09-06-2014Reviewer:Regn (1)
This device does exactly as described, and is great for testing out your PSU before continuing on with a build. Be careful not to plug your 24-pin connector in all the way, since it is frustrating to remove after you are done testing.

No instructions, Jeff with excellent cust svc via phone

01-12-2011Reviewer:JLA (1)
After I learned the ATX 20/24 pin had to be plugged in as well as one each of the other connectors. This works great. Pinpointed and confirmed problems.

Very good for basic use.

12-15-2010Reviewer:Drew Bliss (3)
Satisfied with use of this tester. Gives relatively detailed results about the current functionality of power supplies in any PC troubleshooting situation. Great to make sure a PSU is working, even if it cant really tell a quality PSU from a decent one. Beeping is annoying as hell, though it serves its purpose: wish it wasn''t quite so loud.